<%
'Option Explicit
'***********************************************
' 类名称：ChinaDay
' 用途：
' 根据输入的日期计算该日期的农历天干地支及当年属相
' 使用方法：
' 第一个参数为输入参数，不填写默认为当日，
' 只计算1921-2-8之后的日期
' ##-------------------------------------------##
' Dim objChinaDay
' Dim sDay, sWeekDay, sChinaDay, sChinaYear,sChinaAni
' Set objChinaDay = New ChinaDay
' Call objChinaDay.Action("",sDay,sWeekDay,sChinaYear,sChinaDay,sChinaAni)
' Response.Write sDay&"<BR>"
' Response.Write sWeekDay&"<BR>"
' Response.Write sChinaYear&"<BR>"
' Response.Write sChinaDay&"<BR>"
' Response.Write sChinaAni&"<BR>"
'*******************************************************
Class ChinaDay

Dim arrWeekName(7), MonthAdd(11), NongliData(99)
Dim arrTianGan(9), arrDiZhi(11), arrShuXiang(11), arrDayName(30), arrMonName(12)
Dim curTime, curYear, curMonth, curDay, curWeekday
Dim i, m, n, k, isEnd, bit, TheDate

'初始化数据
Sub Class_Initialize()
'---------------------------------------------------
'定义显示字串

'星期名
arrWeekName(0) = "*"
arrWeekName(1) = "星期日"
arrWeekName(2) = "星期一"
arrWeekName(3) = "星期二"
arrWeekName(4) = "星期三"
arrWeekName(5) = "星期四"
arrWeekName(6) = "星期五"
arrWeekName(7) = "星期六"

'天干名称
arrTianGan(0) = "甲"
arrTianGan(1) = "乙"
arrTianGan(2) = "丙"
arrTianGan(3) = "丁"
arrTianGan(4) = "戊"
arrTianGan(5) = "己"
arrTianGan(6) = "庚"
arrTianGan(7) = "辛"
arrTianGan(8) = "壬"
arrTianGan(9) = "癸"

'地支名称
arrDiZhi(0) = "子"
arrDiZhi(1) = "丑"
arrDiZhi(2) = "寅"
arrDiZhi(3) = "卯"
arrDiZhi(4) = "辰"
arrDiZhi(5) = "巳"
arrDiZhi(6) = "午"
arrDiZhi(7) = "未"
arrDiZhi(8) = "申"
arrDiZhi(9) = "酉"
arrDiZhi(10) = "戌"
arrDiZhi(11) = "亥"

'属相名称
arrShuXiang(0) = "鼠"
arrShuXiang(1) = "牛"
arrShuXiang(2) = "虎"
arrShuXiang(3) = "兔"
arrShuXiang(4) = "龙"
arrShuXiang(5) = "蛇"
arrShuXiang(6) = "马"
arrShuXiang(7) = "羊"
arrShuXiang(8) = "猴"
arrShuXiang(9) = "鸡"
arrShuXiang(10) = "狗"
arrShuXiang(11) = "猪"

'农历日期名
arrDayName(0) = "*"
arrDayName(1) = "初一"
arrDayName(2) = "初二"
arrDayName(3) = "初三"
arrDayName(4) = "初四"
arrDayName(5) = "初五"
arrDayName(6) = "初六"
arrDayName(7) = "初七"
arrDayName(8) = "初八"
arrDayName(9) = "初九"
arrDayName(10) = "初十"
arrDayName(11) = "十一"
arrDayName(12) = "十二"
arrDayName(13) = "十三"
arrDayName(14) = "十四"
arrDayName(15) = "十五"
arrDayName(16) = "十六"
arrDayName(17) = "十七"
arrDayName(18) = "十八"
arrDayName(19) = "十九"
arrDayName(20) = "二十"
arrDayName(21) = "廿一"
arrDayName(22) = "廿二"
arrDayName(23) = "廿三"
arrDayName(24) = "廿四"
arrDayName(25) = "廿五"
arrDayName(26) = "廿六"
arrDayName(27) = "廿七"
arrDayName(28) = "廿八"
arrDayName(29) = "廿九"
arrDayName(30) = "三十"

'农历月份名
arrMonName(0) = "*"
arrMonName(1) = "正"
arrMonName(2) = "二"
arrMonName(3) = "三"
arrMonName(4) = "四"
arrMonName(5) = "五"
arrMonName(6) = "六"
arrMonName(7) = "七"
arrMonName(8) = "八"
arrMonName(9) = "九"
arrMonName(10) = "十"
arrMonName(11) = "十一"
arrMonName(12) = "腊"

'---------------------------------------------------------

'公差数据定义

'公历每月前面的天数
MonthAdd(0) = 0
MonthAdd(1) = 31
MonthAdd(2) = 59
MonthAdd(3) = 90
MonthAdd(4) = 120
MonthAdd(5) = 151
MonthAdd(6) = 181
MonthAdd(7) = 212
MonthAdd(8) = 243
MonthAdd(9) = 273
MonthAdd(10) = 304
MonthAdd(11) = 334

'农历数据
NongliData(0) = 2635
NongliData(1) = 333387
NongliData(2) = 1701
NongliData(3) = 1748
NongliData(4) = 267701
NongliData(5) = 694
NongliData(6) = 2391
NongliData(7) = 133423
NongliData(8) = 1175
NongliData(9) = 396438
NongliData(10) = 3402
NongliData(11) = 3749
NongliData(12) = 331177
NongliData(13) = 1453
NongliData(14) = 694
NongliData(15) = 201326
NongliData(16) = 2350
NongliData(17) = 465197
NongliData(18) = 3221
NongliData(19) = 3402
NongliData(20) = 400202
NongliData(21) = 2901
NongliData(22) = 1386
NongliData(23) = 267611
NongliData(24) = 605

NongliData(25) = 2349
NongliData(26) = 137515
NongliData(27) = 2709
NongliData(28) = 464533
NongliData(29) = 1738
NongliData(30) = 2901
NongliData(31) = 330421
NongliData(32) = 1242
NongliData(33) = 2651
NongliData(34) = 199255
NongliData(35) = 1323
NongliData(36) = 529706
NongliData(37) = 3733
NongliData(38) = 1706
NongliData(39) = 398762
NongliData(40) = 2741
NongliData(41) = 1206
NongliData(42) = 267438
NongliData(43) = 2647
NongliData(44) = 1318
NongliData(45) = 204070
NongliData(46) = 3477
NongliData(47) = 461653
NongliData(48) = 1386
NongliData(49) = 2413
NongliData(50) = 330077
NongliData(51) = 1197
NongliData(52) = 2637
NongliData(53) = 268877
NongliData(54) = 3365
NongliData(55) = 531109
NongliData(56) = 2900
NongliData(57) = 2922
NongliData(58) = 398042
NongliData(59) = 2395
NongliData(60) = 1179
NongliData(61) = 267415
NongliData(62) = 2635
NongliData(63) = 661067
NongliData(64) = 1701
NongliData(65) = 1748
NongliData(66) = 398772
NongliData(67) = 2742
NongliData(68) = 2391
NongliData(69) = 330031
NongliData(70) = 1175
NongliData(71) = 1611
NongliData(72) = 200010
NongliData(73) = 3749
NongliData(74) = 527717
NongliData(75) = 1452
NongliData(76) = 2742
NongliData(77) = 332397
NongliData(78) = 2350
NongliData(79) = 3222
NongliData(80) = 268949
NongliData(81) = 3402
NongliData(82) = 3493
NongliData(83) = 133973
NongliData(84) = 1386
NongliData(85) = 464219
NongliData(86) = 605
NongliData(87) = 2349
NongliData(88) = 334123
NongliData(89) = 2709
NongliData(90) = 2890
NongliData(91) = 267946
NongliData(92) = 2773
NongliData(93) = 592565
NongliData(94) = 1210
NongliData(95) = 2651
NongliData(96) = 395863
NongliData(97) = 1323
NongliData(98) = 2707
NongliData(99) = 265877
End Sub

'############################################################
'主要方法 Action
' inDay 输入日期，如果不输入则默认为当前日期
' sDay 中文格式日期
' sWeekDay 周几
' sChinaYear 农历年
' sChinaDay 农历日
' sChinaAni 属相
'############################################################
Public Function Action(inDay,sDay,sWeekDay,sChinaYear,sChinaDay,sChinaAni)

'转换要转换的日期
If inDay="" Or Not IsDate(inDay) Then
'获取当前系统时间
curTime = Now()
Else
curTime = CDate(inDay)
End If

If Datediff("d",curTime,Cdate("1921-2-8"))>0 Then
Exit Function
End If

'生成当前公历年、月、日 ==> sDay
curYear = Year(curTime)
curMonth = Month(curTime)
curDay = Day(curTime)

sDay = curYear&"年"
If (curMonth < 10) Then
sDay = sDay&"0"&curMonth&"月"
Else
sDay = sDay&curMonth&"月"
End If
If (curDay < 10) Then
sDay = sDay&"0"&curDay&"日"
Else
sDay = sDay&curDay&"日"
End If

'生成当前公历星期 ==> sWeekDay
curWeekday = Weekday(curTime)
sWeekDay = arrWeekName(curWeekday)

'计算到初始时间1921年2月8日的天数：1921-2-8(正月初一)
TheDate = (curYear - 1921) * 365 + Int((curYear - 1921) / 4) + curDay + MonthAdd(curMonth - 1) - 38
If ((curYear Mod 4) = 0 AND curMonth > 2) Then
TheDate = TheDate + 1
End If

'计算农历天干、地支、月、日
isEnd = 0
m = 0
'------------------------------------
Do
If (NongliData(m) < 4095) Then
k = 11
Else
k = 12
End if

n = k
'------------------------------------
Do
If (n < 0) Then
Exit Do
End If

'获取NongliData(m)的第n个二进制位的值
bit = NongliData(m)
For i = 1 To n Step 1
bit = Int(bit / 2)
Next
bit = bit Mod 2

If (TheDate <= 29 + bit) Then
isEnd = 1
Exit Do
End If

TheDate = TheDate - 29 - bit

n = n - 1
Loop
'------------------------------------
If (isEnd = 1) Then
Exit Do
End If

m = m + 1
Loop
'------------------------------------

curYear = 1921 + m
curMonth = k - n + 1
curDay = TheDate

If (k = 12) Then
If (curMonth = (Int(NongliData(m) / 65536) + 1)) Then
curMonth = 1 - curMonth
ElseIf (curMonth > (Int(NongliData(m) / 65536) + 1)) Then
curMonth = curMonth - 1
End if
End If

'生成农历天干、地支==> sChinaYear
sChinaYear = "农历"&arrTianGan(((curYear - 4) Mod 60) Mod 10)&arrDiZhi(((curYear - 4) Mod 60) Mod 12)&"年"
'生成属相 == > sChinaAni
sChinaAni = arrShuXiang(((curYear - 4) Mod 60) Mod 12)

'生成农历月、日 ==> NongliDayStr
If (curMonth < 1) Then
sChinaDay = "闰"&arrMonName(-1 * curMonth)
Else
sChinaDay = arrMonName(curMonth)
End If
sChinaDay = sChinaDay&"月"

sChinaDay = sChinaDay & arrDayName(curDay)
End Function
End Class
%>